I don't watch the show. This special episode is it called special because it includes Raymond? since Raymond rarely go on playful silly gameshows and do playful silly things. It got decent ratings too.

they also explained a bit at the beginning and partially on their website that the last episode was supposed to have been voted by the audience on which star they thought was "MVP" ..or that they'd like to see on the show again. This special was for the first 7 episodes i think..but i think TVB ran out of time or something, and so there ended up being only one episode of the MVP battling ..and the stars that showed up for the second half of All Star Glam Exam didn't end up playing again. Only Wong Cho Lam did.